javascript - jquery navigation scroll up on slide, not working -


any 1 have solution me why not working? websites let navigation disappear on slide down , show whe toggle up, in case tried insert script, , tried not effect html code , use have, nothing works. script-

<script> var previousscroll = 0, headerorgoffset = $('#header').offset().top;  $('target').height($('#header').height());  $(window).scroll(function() {     var currentscroll = $(this).scrolltop();     console.log(currentscroll + " , " + previousscroll + " , " + headerorgoffset);     if(currentscroll > headerorgoffset) {         if (currentscroll > previousscroll) {             $('#header').fadeout();         } else {             $('#header').fadein();             $('#header').addclass('fixed');         }     } else {          $('#header').removeclass('fixed');        }     previousscroll = currentscroll; }); </script>

the html-

<nav class="navi" id="target">     <div class="menu" id="header">          <li><a class="link-1" href="#">home</a></li>         <li><a class="link-1" href="#">second</a></li>         <li><a class="link-1" href="#">third</a></li>         <div class="logo">         <li><a href="#"><img alt="brand" src="logo.png" height="40px" width="60px"></a><li>         </div>      </div> <div class="handle"><p>menu</p></div>     </nav>

demo: https://jsfiddle.net/66jk442l/

here 1 way it.

var timeout, navbar = $('.navbar'),     h = navbar.height();  $(window).scroll(function () {     cleartimeout(timeout);     if ($(this).scrolltop() > 100) {         timeout = settimeout(hidebar, 1200);     } else {         showbar();     } });  function showbar() {     navbar.css('height', h);     $('.navbar > *').show(); }  function hidebar() {     $('.navbar > *').hide();     navbar.css('height', 5); }  navbar.hover(function () {     showbar(); }, function () {     cleartimeout(timeout);     if ($(window).scrolltop() > 100) {         timeout = settimeout(hidebar, 1200);     } });

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